Hi,
I am working on porting gps and use NXP gps module for gps position.
It works fine, but i faced a problem that i can not report a correct
gps status data to GpsLocationProvider.java via gps_sv_status_callback
funtion. because in structure GpsSvStatus{
/** number of SVs currently visible */
int num_svs;
/** Array of space vehicle info */
GpsSvInfo sv_list[GPS_MAX_SVS];
/** bit mask indicating which SVs have ephemeris data */
uint32_t ephemeris_mask;
/** bit mask indicating which SVs have almanac data */
uint32_t almanac_mask;
/**
* bit mask indicating which SVs were used for
* computing the most recent position fix
*/
uint32_t used_in_fix_mask;
}, i do not know what a value i should give to
ephemeris_mask,almanac_mask,used_in_fix_mask.
I can get the gps data from the gps module, and bellow is my debug
info:
sending fix lat=22.5423 lon=113.946 altitude=-138.569 time=Wed Mar 18
07:32:17 2009
D/GpsLocationProvider( 700): reportLocation lat: 22.54233323461825
long: 113.94645713861372 timestamp: 1237361537
D/GpsLocationProvider( 700):
android_location_GpsLocationProvider_wait_for_event
Satellites in view count: 14, for used: 9
Satellites in view 0: prn: 9 , snr: 20.000000, ele:75.000000, azi:
97.000000 , for fix: 1
Satellites in view 1: prn: 21 , snr: 28.000000, ele:68.000000, azi:
275.000000 , for fix: 1
Satellites in view 2: prn: 24 , snr: 22.000000, ele:52.000000, azi:
168.000000 , for fix: 1
Satellites in view 3: prn: 18 , snr: 23.000000, ele:40.000000, azi:
331.000000 , for fix: 1
Satellites in view 4: prn: 15 , snr: 18.000000, ele:28.000000, azi:
39.000000 , for fix: 1
Satellites in view 5: prn: 26 , snr: 24.000000, ele:19.000000, azi:
42.000000 , for fix: 0
Satellites in view 6: prn: 27 , snr: 22.000000, ele:16.000000, azi:
39.000000 , for fix: 1
Satellites in view 7: prn: 5 , snr: 0.000000, ele:15.000000, azi:
159.000000 , for fix: 0
Satellites in view 8: prn: 22 , snr: 42.000000, ele:15.000000, azi:
311.000000 , for fix: 1
Satellites in view 9: prn: 12 , snr: 0.000000, ele:13.000000, azi:
148.000000 , for fix: 0
Satellites in view 10: prn: 14 , snr: 43.000000, ele:13.000000, azi:
256.000000 , for fix: 1
Satellites in view 11: prn: 10 , snr: 0.000000, ele:11.000000, azi:
104.000000 , for fix: 0
Satellites in view 12: prn: 29 , snr: 39.000000, ele:11.000000, azi:
203.000000 , for fix: 1
Satellites in view 13: prn: 30 , snr: 0.000000, ele:4.000000, azi:
180.000000 , for fix: 0
D/GpsLocationProvider( 700):
android_location_GpsLocationProvider_wait_for_event
Can anyone tell me how to give a correct value to
ephemeris_mask,almanac_mask and used_in_fix_mask that base on the
above debug info .
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"android-framework" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-framework?hl=en
-~----------~----~----~----~------~----~------~--~---
